[mabcat]

My situation somewhat overlaps with yours. I ordered a "water flosser" from everyone's favourite ecommerce site, and use it daily in the shower.

It seems to be doing something, and can't possibly be worse than my previous flossing regime which was: "twice a year the day before a dentist visit".

I wasn't willing to shell out for the name-brand water flosser, other options do the same job at the same water pressure for 1/4 the cost.

It took about a month to move up through the power settings. Start on the lowest and click it up when that starts to feel a bit tame.

I've now been using this thing for 6 months, it's just about time to find out whether I get my bi-annual nagging about the importance of flossing. My personal opinion: Cochrane's probably right, flossing is most likely bunk, but I'm pleased to have found a way to do it that I can stand